What is the actual question?
Question?
https://support.chess.com/customer/en/portal/articles/1444849-why-did-the-clock-times-suddenly-change-the-clocks-seem-broken-
You could also be getting small disconnects.
https://support.chess.com/customer/en/portal/articles/1444918-my-internet-connection-is-fine---why-am-i-getting-disconnects-
https://www.chess.com/blog/News/how-to-adjust-your-live-chess-connection
You have been playing with increment. Your last games were all 5|5 which means 5 seconds get added to the clocks after every move. Both players get more time after moving. Nothing is broken.
Sorry I didn't notice on my last post. I just assumed based on your description that you were seeing lag adjustments.
What is all this about?